Mine-car wheel.



H. A. HOLZER'.

MINE CAR WHEEL. APPLIOATION FILED JULY 1s, 1912,y

1,074,363, Patented spt. 30,1913.

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STATES l ijffHIi'IAivr ALIIOILZRQ, orrlrfrsisnae, KANSAS, AssIGNoR-To UNIT/EDLIRONWORKSCOM- PANY, orsrRINeFI'ELD, MISSOURI, A CORPORATION or MISSOURI.'

filaire-153163- w To c/ZZ Iwhomz't mag/economen r -f-Be it known that I, HIRAM A. HoLzER,

aycitizen yofthe United States, residing at Pittsburg Kansas, have invented a. certain new and-useful Improvement in MmefCar W heels, of whichthe following is a full,

clear, and exact description, such as Will 1 enable others skilled in the art to Which it :appertains to make and use the same.

T his invention relates to .wheels and axleboxes such as are used on mine cars,'trucks and similar vehicles.

One ob]ect of my invention is to provide afvvheel of the character described which isl Aso designed thatthe oil or grease used to 'flubrica-te saine cannot leak out.

.-'Another object is to provide a Wheel for trucks, minecarS, etc., which is so designed that hard lubricating grease can be used in saine"` successfully. l i

Anotherobject is to provide a truck or mine` car Wheel having an oil-tiglit lubricat- 1 :ing chamber that receives the axle on which the Wheel is mounted.

Another object is to provide a Wheel and vide a Wheel andfaXle-box that have portions which cooperate With a removable device that retains lthe lWheel in operative position on the'axle.

Other objects and` desirable features of l- `niy 'invention Willv be hereinafter pointed out. i

l Figure l of the drawings is a side eleva-- tional view of a wheel and axle-box constructed in accordance With my invention; and Fig. 2 is a vertical longitudinal sectional view of the Wheel and axle-box.

Referring to the drawings which illustrate the preferred form 'of my invention, A designates a Wheel that is particularly7 adapted for use on mine cars, trucks, and similar vehicles, and B designates the .hub portion of the Wheel provided with a lubrieating chamber which receives the outer end portion of an axle .G that passes through an axle-box D which is secured to the body of the vehicle, as shown in 'broken lines in Fig. 2. The hub Bof the Wheel is provided at its outer end with a cap l Which may either be detachable or formed integral with the hub. In the embodiment of my invention herein shoi'vn, the cap l is integrally Appiicaon filed Juiy 16, 1912'. seriai no. 709,646:

i i Specification-of Letters Patent. i Patie11tedSepLf-501913,

i connected to the hub and is providedwith a` filling opening that isl normally closed by a removable closure 2, su'ch, for example, as a socketed plug that isscreived'into the cap. A roller bearing on ball bearing of any suitable type is arranged in the lubricating chamber of the hub so as to cooperate ivith the axle C, the bearing herein shown A consisting of a plurality of longitudinally disposed rollers 3 which are retained in proper position by means of a cage comprising end rings 4 and 'longitudinally disposed spacing niembers., The outer end ring 4 of the cage bears against an annular shoulo der 5 on the interior of the hub and the inner end ring of the cage bears against avvasher 6 which is permanently connected to the'hub after the roller bearing has been arranged.

in operative position inside of the lubricating chamber,

Preferably, 4a split steel bushing '7 is arranged inside of the hub B of the wheel, as shown in Fig. 2, so as to forni a hard Wearresisting surface for the rollers. The retain-v ing Washer 6 can be connected to the hub of the Wheel in -any suitable manner but I prefer to use a beveled vWasher which is locked in a beveled or undercut recess in the hub by means of sonic suitable metal 6a that can be molded or 4castin the space-between the retaining washer and the undercut recess, the washer` t3 being so arranged that it does not extend out far enough to lie flush With the inner end face of the hub.

The axle-box D through which the axle passes, isprovided at its upper end With a vhorizontally disposed laterally projecting portion 8 that laps over a ringshaped rib or flange 9 on the end portion of the hub, said laterally projecting portion 8 being so designed that it partially embraces a removable wheel-retaining boltv 10' which passes transversely through perforated lugs 11 on the box D. Then the Wheel is arranged in operative position on the axle,

as shoivn in Fig. 2, any outward movement of the ivheel is resisted by the bolt or Wheelretaining device l0` and any inward movement of the ivheel is resisted b v the outer end face of the axle-box that lies directly oppositethe inner end face of the hub of the wheel. Preferably. a steel washer l2 is interposed between the inner end of the hub and the end face of the axle-box so as to reduce the Wear on these parts. `The axledoox D is. adapted to be connected to the under slde of the body of the car or vehicle by means of bolts or other suitable fastenin devices 13 vthat'pass upwardly through a the lnner end of the box, and atthe front formed integral with the flange 15. .'practice, the axle-boxes on each side of the ange 14 at end of the box is an upwardly projecting flange 15 that bears against theside of the 4car and thus takes the strain of the bolts" 13 and prevents the boxl from twisting or turning, the perforatedlugs 11 and horizontally disposed portion S on the box being In car'are connected together a strap 16 that fits in recesses onv the under side of the boxes, as shown in Fig. 2.

To mount the wheel it is only necessary to arrange itin longitudinal alinelnent with the axle-box, -then slip the axle endwise through the washer '12 into the hub of the wheel, and thereafter insert the bolt 10 in the .lugs 11 which project laterally from the front end of the box. The lugs 11 are so disposed that the boltl 10 willcxtend transf.

versely across the hub of the wheel in frontof the ring-shaped flange 9 on the hub and will thus prevent the lwheel from'moving longitudinally of theaxle away from the i car, the front face of the ring-shaped flange l9 'being preferably inclined. and merging gradually into the outer surface of the hub Bi. When it. is desired to remove the wheel, the bolt 10 is withdrawn and the wheel can then be slipped endwise off the axle, the lugs 11 and laterally projecting portion 8 on the box being so disposed that theyl do not con- Atact .with the flange or annular rib 9 on the hub of theJ wheel.v

l In viewj'of the fact that the hub of the wheel is provided with an oil-tight compartment 4for holding the grease or oil that is used to lubricate the wheel no oil can escape from the Wheel. Consequently, it is practicable to pack a wheel of this construction with hard grease 'for the grease is protected from dirt and it cannot drip out of the lubricating chamber. The wheel can be applied and removed quickly and easily owing to the fact that a single -device 10 i-s employed for retaining the Wheel in position; and still another desirable feature of suc-h a construction is that the greatest end thrusts which the wheel receives when it is in service are borne or taken up by the outer end of the axle-box against which the inner end 'of the hub of the Wheel bears. End thrusts in the'opposite direction are taken up by the Wheel-retaining'device 10, the lugs l1 and the overlapping portion 8 on the front end of the axle-box that partially surrounds the device 10.

l The vertical flange 15 onthe .front end of the axle-box not'only rein-A forces and strengthens the box, but it bears against the side of the body of the car in' chamber. the closure at the inner end ot -the hub consisting of a'bevele'd washer that is held in an undercut opening in the end ot' the h ub by means of cast metal, an axlebox 'having' a vertical portion that bears against the inner-end of the hub and pro- .vided at its upper side. with a 'laterally pro-,

ject-ing bracket that hangs over the upper .side 'of the hub, gussets or lugs integrally connected to the vertical portion of` the box and to said bracket for reinforcing the' bracket, and a transversely disposed removable member carried by said bracket and coperating'withthe rib on the hub of the wheel for retaining the wheel on the axle.

In testimony whereot1 I hereunto afx my signature in the presence of two witnesses, this 9th day of July, 1912. e

' I-IIRAM A. HOLZER.

lVitnesses l GEO. H. SrUEssI, O. K. A. FRITZ. 

